Star · B2IV
HIP 34940
HIP 34940 is a subgiant star of spectral type B2IV in the constellation Canis Major, 2,348 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 2,348 light-years (719.9 pc) |
| Apparent magnitude | magnitude 6.34 |
| Absolute magnitude | magnitude −2.95 |
| Spectral type | B2IV |
| Surface temperature | 13,210 K |
| Luminosity | 3,000 L☉ |
| Radius | 10.5 R☉ |
| Mass | 8.95 M☉ (estimated) |
| Right ascension (J2000) | 7h 13m 48.4s |
| Declination (J2000) | −22° 54′ 21″ |
| Space velocity (relative to the Sun) | 24.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.34). Visible from the whole Southern Hemisphere and north to latitude 67° N. South of latitude 67° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 323 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 42 million years.
The Sun seen from there
From a planet around HIP 34940, the Sun would look like a star of magnitude 14.12, in the direction where our sky has the constellation Vulpecula. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.